woodmizer HR250 User manual

HR250
TWIN HEAD HORIZONTAL
BANDRESAW
OPERATION MANUAL
NOTE
• The operator must thoroughly read this manual
before operation.
• Keep this manual for future reference.
Form 2368

2
CONTENTS
GENERAL SAFETY RULES FOR WOODWORKING MACHINERY..................................................1
SAFETY RULES FOR HORIZONTAL BAND RESAW........................................................................4
MACHINE SPECIFICATIONS..............................................................................................................8
LIFTING THE MACHINE....................................................................................................................10
UNPACKING AND CHECKING CONTENTS.....................................................................................12
CLEANING THE MACHINE................................................................................................................13
INSTALLING MACHINE.....................................................................................................................14
LEGEND OF THE MACHINE (FRONT VIEW).
.................................................................................15
LEGEND OF THE MACHINE (BACK VIEW).
...................................................................................16
CONTROL PANEL.
...........................................................................................................................17
LAYOUT OF VARIOUS LIMIT SWITCHES.
......................................................................................35
CONNECTING POWER WIRES.
......................................................................................................37
CHECKING POWER WIRE CONNECTION.
....................................................................................38
ELECTRIC WIRING DIAGRAM.
........................................................................................................39
CONNECTING THE DUST HOOD OUTLET.
...................................................................................42
CONNECTING THE AIR CIRCUIT.
..................................................................................................43
FILTER/REGULATOR/LUBRICATORUNIT.
....................................................................................44
OIL MIST COOLER.
..........................................................................................................................45
ADJUSTING OIL MIST FLOW RATE.
..............................................................................................46
INSPECTING AND ADJUSTING SAWBLADE TENSION.
..............................................................47
ADJUSTINGSAWBLADETRACK (FORWARD/BACKWARD DIRECTION).
.................................51
ADJUSTINGSAWBLADETRACK (RIGHTWARD/LEFTWARD DIRECTION).
..............................53
ADJUSTINGCONVEYORBELT TRACKING.
..................................................................................55
ADJUSTING THE LOADING PRESSURE OF INFEED PRESSURE ROLLER.
...............................56
CONVENIENT WOOD INFEED.
.......................................................................................................57
MAINTENANCE.
...............................................................................................................................58
TROUBLE SHOOTING.
.....................................................................................................................62
HYDRAULIC SCHEMATIC ................................................................................................................63

GENERALSAFETYRULESFOR
WOODWORKING MACHINERY
1
WARNING
Do not attempt to operate until you have read
thoroughly and understood completely all
instructions, rules etc. contained in this manual.
Failure to comply can result in accidents involving
fire, electric shock, or serious personal injury. Keep
this operation manual and review frequently for
continuous safe operations.
1.
Know your machine. For your own safety, read the operation manual
careful
l y. Learn its applications and limitations, as well as specific
potential hazards pertinent to this machine.
2.
Make sure the machine is properly grounded.
3.
Keep guards in place and in working order. If a guard must be removed
for maintenance or cleaning, make sure it is properly reattached before
using themachine again.
4.
Remove adjusting keys and wrenches. Form the habit of checking to
see that keys and adjusting wrenches are removed from the machine
before turning it on.
5.
Keep the work area clean. Cluttered areas and work benches increases
the likelihood of an accident.
6.
Do not use in dangerous environments. Do not use the machine in
damp or wet locations or exposure to rain. Keep the work area well
illuminated.
7.
Keep children away. All visitors should be kept at a safe distance from
the work area.
8.
Make workshop childproof. With padlocks, master switches, or by
removing starter keys.

GENERALSAFETYRULESFOR
WOODWORKING MACHINERY
2
9.
Do not force the machine. It will do the job better and be safer at the
rate for which it was designed.
10.
Use the right tools. Do not force the machine or attachments to do a
job for which they were not designed for. Contact the manufacturer or
distributor if there are any questions about the machine's suitability for
a particular job.
11.
Wear proper apparel. Avoid loose clothing, neckties, rings,
bracelets, or jewelry which could be caught in moving parts. Nonslip
footwear is recommended. Wear protective hair covering to contain
long hair.
12.
Always use safety glasses. Use face or dust masks if the operation area
has too much sawdust. Do not wear general glasses, because they
do
not resist impact. They are not safety glasses.
13.
Secure work.
14.
Keep proper footing and balance at all times.
15.
Maintain machine in top condition. Keep the machine clean for the
best and safest performance. Follow instructions for lubricating and
changing accessories.
16.
Disconnect the machine from the power s o urce before servicing and
when changing accessories, or when mounting and remounting motor.
17.
Avoid accidental starting. Make sure the switch is in the "off" position
before plugging in the power cord.
18.
Use recommended accessories. Consult the operating manual for
recommended accessories.
19.
Check for damaged parts. Before further use of the machine, guard s
and other safety part s should be carefully checked to make sure that it
will operate properly and perform
the intended function. Check for
alignment of moving parts, binding of moving parts, b
roken parts,
mounting,
or any other condition that may affect operation. Guards or
other partsthat are damaged should be properly repaired or replaced.

GENERALSAFETYRULESFOR
WOODWORKING MACHINERY
3
20.
Never leave the machine running unattended. Turn the power off. Do
not leave the machine until it comes to a complete stop.
21.
Do not use the machine while under the effects of drugs, alcohol, or
any medication.
22.
Always wear a face or dust mask if machinery operation produces a lot
of saw dust and or wood chips. Always operate the machine in a well-
ventilated area and provide for proper dust removal. Use a wood dust
collection system whenever possible.
23.
The HR250 Resaw is intended for sawing wood only. The machine must
not be used for other purposes such as cutting ice, metal or any other
materials.
24.
The blade is very sharp. Always wear safety gloves when handling the
blade.
25.
Never clean the blade or blade wheels with a brush or a scraper during
sawmill operation.
26.
Always wear ear protection when operating this machine.

4
SAFETYRULESFOR
HORIZONTAL BAND RESAW
1. Do not attempt to remove any object from the conveyor belt when the
machine is running.
2. The sawblade is very sharp. Care should be taken when replacing
the sawblade.
3. Turn the power off before performing maintenance or servicing.
4. Keep all guards in place before starting the machine.
5. Always keep the sawblade sharp.
6. Before installation of the blade, inspect it for damage and cracks. Use
properly sharpened blades only. Always handle the blade with extreme
caution. Use suitable carrier equipment for transporting the blades.
1. If sawblade breaks, turn the power off immediately. The operator
should stand away from the machine until it comes to a complete
stop.
2. When turning the power on for checking blade tracking, the operator
should stand the one side. This will prevent the danger of blade slip-
out or breakage.
3. Use the proper feed speed according to wood material.
4. Make sure the sawblade is properly tensioned. Excessive tension
may
cause blade breakage.
5. Make sure the machine is properly ground to avoid the danger of
electric shock.
6. Before feeding wood into the machine, check if it contains nails or
metallic objects or not.
7. Never clean the blade or blade wheels with a brush or a scraper during
sawmill operation.

5
SAFETYRULESFOR
HORIZONTAL BAND RESAW
8. The blade tension should be released when the machine is not in use (e.g.:
after a shift). There should be information on the machine that it is necessary
to tension the blade before starting to use the machine again.
9. Before installation of the blade, inspect it for damage and cracks. Use only
properly sharpened blades. Always handle the blade with extreme caution.
Use suitable carrier equipment for transporting the blades.

6
SAFETYRULESFOR
HORIZONTAL BAND RESAW
Safety Labels Description
See Table 1-1. Pictogram decals used to warn and inform the user about danger in the saw.

7
SAFETYRULESFOR
HORIZONTAL BAND RESAW

8
MACHINE SPECIFICATIONS
HR250 SPECIFICATIONS
*
HR250 Super Power Options
Two 15kW (20HP) Motor, 230V Part #: HR250SEA20
Two 15kW (20HP) Motor, 380V 50Hz Part #: HR250SEH20
Two 18.5kW (25HP) Motor, 460V/60Hz Part #: HR250SEC20
HR250ManualPowerOptions
Two 15kW (20HP) Motor, 230V Part #: HR250EA20
Two 15kW (20HP) Motor, 380V 50Hz Part #: HR250EH20
Two 18.5kW (25HP) Motor, 460V/60Hz Part #: HR250EC20
Blade
Length - 4265mm (168")
Width - 32mm - 35mm (1 ¼" - 1 ½"), Optional** 50mm (2")
Thickness - 1.07mm (0.042")
Linear Blade Speed: 24m/s
Blade Wheel
Diameter - 710mm (28")
Type - Steel, dynamically balanced
Feed System
Conveyor Belt- 285mm x 5480mm (11.22" x 215 ¾")
Feed Rate - Variable 5 to 25m/min (16 to 82 feet/min)
Power - 0.75kW (2HP)
CuttingCapacity
Min. Cut Height - 5mm (.2") Max.
Cut Height - 170mm (6 ¾")
Max. Material Height - 250mm (10")
Min. Material Length - 300mm (12")
Max. Material Length - N/A
Min. Width - 25mm (1")
Max. Width - 300mm (12")
Dimensions & Requirements
Packing Dimensions Frame - 2180mm x 1140mm x 2100mm (86" x 45" x 83")
Packing Dimensions Conveyor - 2870mm x 640mm x 600mm (113" x 25 1/4" x 24")
Length - 2794mm (110")
Width - 2210mm (87")
Height - 1981mm (78")
Weight - 1,400kgs (3,085lbs)

9
MACHINE SPECIFICATIONS
Noise Level
L
EX8 = 87dB(A)12
1The noise level measurement was taken in accordance with PN-EN ISO 3746 Standard .
The noise exposure level given above concerns an 8-hour work day. Value for associated
uncertainty K=4dB.
2The figures quoted are emission levels and are not necessarily safe working levels. Whilst
there is a correlation between the emission and exposure levels, this cannot be used
reliably to determine whether or not further precautions are required. Factors that
influence the actual level of exposure of the workforce include the characteristics of the
work room and the other sources of noise etc. i.e. the number of machines and other
adjacent processes. Also the permissible exposure level can vary from country to country.
This information, however, will enable the user of the machine to make a better evaluation of
the hazard and risk.

10
LIFTING THE MACHINE
SAWDUST EXTRACTOR SPECIFICATION
3
Maximum Capacity:1200m3/h
Collector Inlet Diameters (in front of fan)
:145 mm
Electric Motor Horsepower:
1,5 kW
Number of Sacks for Waste
2 pc
Total Capacity of Sacks
0.25 m3
Pressure drop
1,5 kPa (0.22 psi)4
Weight
110 kg
Conveying Speed When 10 m Long
Hose Is Used
20 m/s
CAUTION
Always turn on the dust extractor before
starting the machine.
3External chip and dust extraction equipment with fixed installation are dealt with EN 12779:2016-04
4The pressure drop between the inlet of the capture device and the connection to the CADES should not exceed
1.5 kPa (for the nominal air flow rate). If the pressure drop exceeds 1.5 kPa the machine might not be compatible
with conventional CADES.

11
LIFTING THE MACHINE
This machine should be lifted or moved only by using a forklift.
Make sure the loading capacity of the forklift is enough to lift
themachine.
The weight of HR250 is shown as below:
Netweight:1630kgs(3594lbs.)
Gross weight:1730kgs (3814 lbs.)
Lifting a packed machine and unpacked machine is shown
below. Always pay attention to the machine balance when
lifting the machine.
Lifting Channels
Lifting a packed machine Lifting an unpacked machine

12
UNPACKING AND CHECKING
CONTENTS
The twin head horizontal band resaw is shipped in one
wooden crate.
Carefully unpack the machine to avoid damage to the
machine.
Check the machine to see if all parts are present and free of
damage. If any parts are missing or damaged, contact your
local distributor or the machine manufacturer immediately.
WARNING
Do not attempt to assemble or operate the
machine without all parts are present and
in working order.

13
CLEANING THE MACHINE
Before shipment, the machine is coated with a rust-preventive
oil to prevent rusting during transportation.
Once you receive and unpack the machine, thoroughly remove
rust preventive oil. To do this, use a clean cloth soaked in
kerosene for removing the rust preventive oil.
CAUTION
Do not use lacquer thinners or any volatile
solvents, because they can damage the
painted surfaces of the machine.

14
INSTALLING MACHINE
HR250_001
IMPORTANT! Before starting to use the resaw, you must meet the
following conditions:
•Set up the machine on firm and level ground. Secure the sawmill to
the ground to prevent moving during operation.
•A concrete foundation and anchored bolts are recommended.
•When your HR250 resaw is used indoors, it must be operated with
a sawdust exhaust system connected.
•The HR250 resaw must not be used outdoors when it is
raining/snowing. In such a case, the machine must be placed under
a roof or indoors.
•The machine should work in temperatures of –15oC to 40oC (5oF to
104oF) only.
•The light intensity in the operator’s work-place must be 300 lux5.
•
When installing the machine, be sure to leave
proper
spaces around the machine to facilitate
material handling.
•The work-places for two operators of the edger are shown in the
figure below.
5The light source cannot cause the stroboscopic effect.

15
LEGEND OF THE MACHINE
(FRONT VIEW)
1. Feed conveyor
2. Air cylinder for infeed pressure roller
3. Lifting channels for forklift
4. Front door
5. Dust outlet for lower sawblade (ø6”)
6. Lower saw wheel drive motor (20HP)
7. Dust outlet for upper sawblade (ø6”)
8. Upper saw wheel drive motor (20HP)
9. Control box
10. Infeed pressure roller assembly

16
LEGEND OF THE MACHINE
(BACK VIEW)
7
8
9
6
5
10
1 2 3 4
1. Lower saw wheel drive motor (20HP)
2. Filter/regulator/lubricator combination unit
3. Air/hydraulic combination unit for sawblade tension
4. Emergency stop switch
5. Conveyor belt drive motor (20HP)
6. Gear reducer
7. Oil box for oil mist cooler
8. Upper saw wheel drive motor (20HP)
9. Dust outlet for upper sawblade (ø6”)
10. Dust outlet for lower sawblade (ø6”)

17
CONTROL PANEL
1. KEY SWITCH- MAINTENANCE/ RUN
2. EMERGENCY STOP SWITCH
3. POWER ON CONTROL PANEL SWITCH
4. CONVEYOR BELT SPEED REGULATOR
5. SAWBLADE TENSION SWITCH
6. AIR PRESSURE WARNING LIGHT
7. CONVEYOR BELT STOP SWITCH
8. CONVEYOR BELT START SWITCH
9. LOWER SAW WHEEL STOP SWITCH
10. LOWER SAW WHEEL START SWITCH
11. LOWER SAW WHEEL LOWERING SWITCH

18
CONTROL PANEL
12. LOWER SAW WHEEL RAISING SWITCH
13. DIGITAL CONTROLLER FOR LOWER SAW WHEEL ELEVATION
14. DIGITAL CONTROLLER FOR UPPER SAW WHEEL ELEVATION
15. UPPER SAW WHEEL LOWERING SWITCH
16. UPPER SAW WHEEL RAISING SWITCH
17. UPPER SAW WHEEL START SWITCH
18. UPPER SAW WHEEL STOP SWITCH
19. MAGNETIC BRAKE CONTROL SWITCH